Details

Autor(en) / Beteiligte

• Aharonian, F.
• Akhperjanian, A. G.
• Bazer-Bachi, A. R.
• Beilicke, M.
• Benbow, W.
• Berge, D.
• Borrel, V.
• Brion, E.
• Brown, A. M.
• Bühler, R.
• Büsching, I.
• Carrigan, S.
• Chadwick, P. M.
• Chounet, L.-M.
• Coignet, G.
• Cornils, R.
• Dickinson, H. J.
• Djannati-Ataï, A.
• Drury, L. O'C.
• Dubus, G.
• Egberts, K.
• Emmanoulopoulos, D.
• Feinstein, F.
• Fontaine, G.
• Funk, Seb
• Funk, S.
• Giebels, B.
• Glicenstein, J. F.
• Goret, P.
• Hadjichristidis, C.
• Hauser, D.
• Hauser, M.
• Heinzelmann, G.
• Henri, G.
• Hermann, G.
• Hinton, J. A.
• Hoffmann, A.
• Hofmann, W.
• Holleran, M.
• Hoppe, S.
• Horns, D.
• Jacholkowska, A.
• de Jager, O. C.
• Kerschhaggl, M.
• Khélifi, B.
• Komin, Nu
• Konopelko, A.
• Kosack, K.
• Lamanna, G.
• Latham, I. J.
• Le Gallou, R.
• Marcowith, A.
• Masterson, C.
• Maurin, G.
• McComb, T. J. L.
• Moulin, E.
• de Naurois, M.
• Noutsos, A.
• Olive, J.-P.
• Orford, K. J.
• Osborne, J. L.
• Panter, M.
• Pelletier, G.
• Pita, S.
• Pühlhofer, G.
• Punch, M.
• Ranchon, S.
• Raubenheimer, B. C.
• Raue, M.
• Rayner, S. M.
• Reimer, A.
• Reimer, O.
• Ripken, J.
• Rob, L.
• Rolland, L.
• Rosier-Lees, S.
• Rowell, G.
• Sahakian, V.
• Santangelo, A.
• Saugé, L.
• Schlenker, S.
• Schlickeiser, R.
• Schröder, R.
• Schwanke, U.
• Schwarzburg, S.
• Schwemmer, S.
• Shalchi, A.
• Spanier, F.
• Steenkamp, R.
• Stegmann, C.
• Superina, G.
• Tavernet, J.-P.
• Terrier, R.
• van Eldik, C.
• Vasileiadis, G.
• Venter, C.
• Vialle, J. P.
• Vincent, P.
• Wagner, S. J.
• Ward, M.

Titel

Primary particle acceleration above 100 TeV in the shell-type supernova remnant RX J1713.7-3946 with deep HESS observations

Ist Teil von

• Astronomy and astrophysics (Berlin), 2007-03, Vol.464 (1), p.235-243

Ort / Verlag

EDP Sciences

Erscheinungsjahr

2007

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Aims.We present deep HESS observations of the supernova remnant (SNR) RX J1713.7-3946. Combining data of three years – from 2003 to 2005 – we obtain significantly increased statistics and energy coverage as compared to earlier 2003 and 2004 results. Methods.The data are analysed separately for the different years. Results.Very good agreement of the gamma-ray morphology and the differential spectra is found when comparing the three years. The combined gamma-ray image of the 2004 and 2005 data reveals the morphology of RX J1713.7-3946 with unprecedented precision. An angular resolution of $0.06\degr$ is achieved, revealing the detailed structure of the remnant. The combined spectrum of all three years extends over three orders of magnitude, with significant gamma-ray emission approaching 100 TeV. The cumulative significance above 30 TeV is $4.8\sigma$, while for energies between 113 and 294 TeV an upper limit on the gamma-ray flux of $1.6\times 10^{-16}~\mathrm{cm}^{-2}~\mathrm{s}^{-1}$ is obtained. Conclusions.The energy coverage of the HESS data is presumably at the limit of present generation Cherenkov telescopes. The measurement of significant gamma-ray emission beyond 30 TeV formally implies the existence of primary particles of at least that energy. However, for realistic scenarios of very-high-energy gamma-ray production, the Inverse Compton scattering of very-high-energy electrons and $\pi^0$ decay following inelastic proton-proton interactions, the measured gamma-ray energies imply that efficient acceleration of primary particles to energies exceeding 100 TeV is taking place in the shell of the SNR RX J1713.7-3946.